From: Stefan Monnier <monnier@iro.umontreal.ca>
To: "Roland Winkler" <winkler@gnu.org>
Cc: Daniel Colascione <dancol@dancol.org>, emacs-devel@gnu.org
Subject: Re: type checking for arbitrary lisp objects
Date: Fri, 11 Apr 2014 16:03:05 -0400 [thread overview]
Message-ID: <jwvtx9zoct5.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <16657.80762.790748.21320@gargle.gargle.HOWL> (Roland Winkler's message of "Fri, 11 Apr 2014 14:22:57 -0500")
>> Why not use cl-deftype?
> ...Interesting! - I guess the main difference to what I have in mind
> is that cl-deftype appears to require some lisp code for FORMS.
> I am thinking about replacing these forms by some more readable
> pattern such as the one I included in my first post. The function
> bbdb-check-type then compares an arbitrary lisp object against such
> pattern. I find it more readable and also more flexible to define
> patterns instead of hacking actual code.
AFAIK cl-deftype is specifically there to define those patterns, so you
can later pass them to cl-check-type.
Stefan
next prev parent reply other threads:[~2014-04-11 20:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-11 19:10 type checking for arbitrary lisp objects Roland Winkler
2014-04-11 19:12 ` Daniel Colascione
2014-04-11 19:22 ` Roland Winkler
2014-04-11 20:03 ` Stefan Monnier [this message]
2014-04-12 3:32 ` Roland Winkler
2014-04-12 13:16 ` Stefan Monnier
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